Coprecipitation of Chromium (III) and Chromium (VI) onto Iron (III) Hydroxide Precipitate
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منابع مشابه
Spectroscopic Determination of Chromium(Vl) during the Reduction of Chromium(VI) to Chromium(III)
Reduction of chromium(VI) to chromium(Ill) by thiourea between pH 3.0 and 5.5 is a key aspect of the chrominm(VI)/thiourea/polyacrylamide gel polymer system used in enhanced oil recovery processes. A method has been developed to determine chromium(Vl) concentration during the reduction of chromium(VI) to chromium(III) in this pH range. The reduction reaction is run in the presence of an acetic ...
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BACKGROUND Chromium (Cr) release from Cr-tanned leather articles is a major cause of Cr contact dermatitis. It has been suggested that Cr(VI) release from leather is not necessarily an intrinsic property of the leather, but is strongly dependent on environmental conditions. OBJECTIVES To test this hypothesis for long-term (8 months) simulated use. MATERIALS AND METHODS The release of total ...
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101 CHARACTERIZATION OF CHROMIUM(VI) BIOREDUCTION AND CHROMIUM(III) BINDING TO ALFALFA BIOMASS K. Dokken, G. Gamez, I. Herrera, K.J. Tiemann, N.E. Pingitore, R.R. Chianelli, and J.L. Gardea-Torresdey Department of Chemistry and Environmental Science and Engineering,University of Texas at El Paso, El Paso, TX 79968; Phone: (915) 747-5359; Fax: (915) 747-5847. Department of Geological Sciences, U...
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BACKGROUND Approximately 1-3% of the adult population in Europe is allergic to chromium (Cr). A new restriction in REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) based on the ISO 17075 standard has recently been adopted in the EU to limit Cr(VI) in consumer and occupational leather products. OBJECTIVES The aim of this study was to critically assess key experiment...
متن کاملIsolation of a novel chromium(III) binding protein from bovine liver tissue after chromium(VI) exposure.
In the ongoing investigation into the biological importance and toxicity issues surrounding the bioinorganic chemistry of chromium, the accepted literature procedure for the isolation of the biological form of chromium, low molecular weight chromium binding protein (LMWCr) or chromodulin, was investigated for its specificity. When chromium(VI) is added to bovine liver homogenate, results presen...
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1971
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.92.339